Callen: I'm all for going green, reducing our footprints, but if Hetty has her way we're going to be reusing our bullets. Sam: She just wants us to recover our brass, if possible. Callen: Reusable water bottles, no more paper towels, no more paper cups, what's next to go?Sam: Saving the planet, G.Callen: Don't come whining to me when she replaces our toilet paper with used post its.